github.com/benhoyt/goawk@v1.8.1/testdata/gawk/getline3.awk (about)

     1  BEGIN {
     2  	cmd = "echo 3"
     3  	y = 7
     4  	cmd | getline x y
     5  	close(cmd)
     6  	print (cmd | getline x y)
     7  }